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So, I recently added some disk to a system and everything seemed to be peachy, the extending of the LVM went fine and so did the filesystem resize. However, when a user logs on to the system and tries editing or creating a file in his/hers home directory the message "write error: disk full?" appears out of nowhere.

Checking a df -h reports this:

Filesystem            Size  Used Avail Use% Mounted on
/dev/sda3             133G  109G   17G  87% /
udev                  3.0G  200K  3.0G   1% /dev
/dev/sda1             297M   19M  263M   7% /boot
/dev/mapper/vg00-lvhome 15T  2.4T   13T  16% /home

Has anyone ever encountered this before?

Sorry if the information provided is insufficient, if something is lacking just let me know so that I can provide it.

share|improve this question
what filesystem is on /dev/mapper/vg00-lvhome? – Jasper Mar 8 '12 at 9:13
the filesystem is ext3 – David Lind Mar 8 '12 at 9:14
Is the file system in good shape? Does dmesg return I/O errors or similar? Can you create new files to /home as root? More info needed! :) – Janne Pikkarainen Mar 8 '12 at 9:27
Hello Janne, thanks for your input. Dmesg does not report any IO errors. Yes, it is possible to create files as the root user. – David Lind Mar 8 '12 at 9:31
Are the quotas in use? SELinux? File/directory permissions ok? – Janne Pikkarainen Mar 8 '12 at 9:39

Maybe your /home partition has run out of inodes. You can check your inode usage with df -i.

share|improve this answer
No there seems to be inodes left, df -i reports that the inode usage for /home is at 1% – David Lind Mar 8 '12 at 9:22

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